🤖 Feishu: expand channel support

What:
- add post parsing, doc link extraction, routing, replies, reactions, typing, and user lookup
- fix media download/send flows and make doc fetches domain-aware
- update Feishu docs and clawtributor credits

Why:
- raise Feishu parity with other channels and avoid dropped group messages
- keep replies threaded while supporting Lark domains
- document new configuration and credit the contributor

Tests:
- pnpm build
- pnpm check
- pnpm test (gateway suite timed out; reran pnpm vitest run --config vitest.gateway.config.ts)

Co-authored-by: 九灵云 <server@jiulingyun.cn>

scripts/clawtributors-map.json

@@ -15,7 +15,8 @@
     "ysqander",
     "atalovesyou",
     "0xJonHoldsCrypto",
-    "hougangdev"
+    "hougangdev",
+    "jiulingyun"
   ],
   "seedCommit": "d6863f87",
   "placeholderAvatar": "assets/avatar-placeholder.svg",